Orifice dial valve



D. 7, 1937. l W ZAK 2,101,356

ORIFICE DIAL VALVE Filed April 19, 1957 Patented Dec. 7, 1937 UNITED STATES PATENT OFFICE 5 Claims.

This invention relates to an orifice dial valve.

An object of the. invention is the construction of an eflicient valve which will control the ow correctly in heating systems, just by turning the handle, whereby the size of the orifice will be changed, thereby regulating the flow desired in the heating system.

Another object of the invention is the improvement of the construction of an orice head or valve plug in a valve device constructed in accordance with the present invention.

A further object of the invention is the improvement of the construction of the cap of the device and the handle cooperating with said cap, whereby the operator can4 accurately determine the flow through the valve device.

With the foregoing and other objects in view, my invention comprises certain novel constructions, combinations and arrangements of parts or units as will be hereinafter fully described, i1- lustrated in the accompanying drawing and more particularly pointed out in the appended claims.

In the drawing:

Figure 1 is a View partly in elevation and partly in vertical section of a device constructed in accordance with the present invention, While Figure 2 is a top plan view of the same.

Figure 3 is partly an elevation and partly vertical central section of a device constructed in accordance with the present invention.

Figure 4 is a horizontal sectional View, taken on line 4 4, Figure 1, and looking in the direction of the arrows.

Figure 5 is a horizontal sectional View, similar to Figure-4, showing the valve plug open.

Figure 6 is a view partly in elevation and partly in vertical section of the orice head or valve plug constructed in accordance with this invention, while Figure 7 is a bottom plan View of the same.

Referring to the drawing by numerals, I designates the casing which is provided on its bottom with a screw threaded plug 2, for slip tubing. Extending from one side of casing 2 is an extension 3 which is provided Awith a tapped opening 4 for draining purposes. by screw plug 5. A coupling nut 6 is on extension 3, and this nut carries a hollow tail piece l.

In casing I is an orice head or valve plug 8 which comprises head 9 and stem I0. The head 9 is provided in its sides with yoriiices or apertures I I, varying in size, to control the flow through the valve device at the will of the operator. A slit slot This opening 4 is closed I2 opens at its inner end upon an aperture I I and at its outer end .upon the bottom edge of the head 9; .each orice or aperture II is provided with a like slot I2. These slots I2 are provided for expansion. An annular inwardly-extending integral ange I3 is provided, which prevents warping of the head. In the head 9 are a series of integral vertically-extending side braces I4 extending inwardly from the inner wall of said head 9; the lower end of each brace I4 is about as Wide as ang'e I3, but these braces increase in size towards the center of the head as shown in Fig. 3.

A cap I5 is provided, which is threaded into the top of casing I. This cap I5 is provided with an upwardly-extending hollow head I6. The cap I5 is also provided on its top with a dial face Il (Fig. 2) on which is formed a number of indicating circles I8; these circles correspond in number to the apertures II. On the top of head IE are a series of grooves I9; the grooves I9 radiate from the center of head I6, and there are as many` groovesas indicating circles I8. In other words, the grooves I9 register at their outer ends with indicating circles I8.

A handle 20 is mounted upon the squared end IIJa of -stem I0, with a Washer 2| resting on said handle, and a screw 22 serves to hold the handle securely on the stem. The handle is provided at one end with a depending finger 23, which nger is adapted to engage the upstanding-integral stop 24 formedon cap I5. The handle is provided on its outer end with anupstanding grip or ange 25, and beneath grip 25, the handle is provided with a depending lug 26, Extending through lug 26 (Fig. 3) is a, spring locking pin 21. The inner end of pin 2l rides over the top of head IB, when rotary movement is imparted to the handle, and this pin 2l is adapted to rest in any one of groves I9, thereby locking the handle and the valve plug in an adjusted position, against accidental displacement.

A coil spring 28 is within cap I5 and bears at its lower end upon the top of head 9 of the valve plug 8. A disc packing 29 is placed against the upper end of spring 28, and a separating washer 30 is against disc packing 29; the spring 28, packing 29 and washer 30 are slidably mounted upon stem I0. The spring 28 serves to keep valve head 9 snugly seated in its operative position in casing I.

When the handle is in position shown in Fig. 2, with linger 23 against stop 24 then the valve device will be closed. By rotating the handle 2U, pin 2l can be placed in any groove I9 desired, so that the flow through the valve device can be accurately controlled. If the minimum flow is desired' the handle is moved to cause pin 21 to rest in the groove registering with the smallest indicating circle on the dial face, then the handle can be further rotated to cause pin 21 to move into the other grooves as a greater flow is desired.

In Figure 4 the valve plug is shown in a closed position. This figure also shows clearly the plug 5, which closes the cleanout or drain opening 4. In Figure 5 the valve plug is shown in an ropen condition, that is, with one of the apertures il registering with the hollow extension 3.

While I have described the preferred embodiment of my invention and illustrated the same in the acompanying drawing, certain minor changes or alterations may appear to one skilled in the art to which this invention relates during the extensive manufacture of same, and I, therefore, reserve the right to make such changes or alterations as shall fairly fall within the scope of the appended claims.

What I claim is:

1. In an orifice dial valve, the combination of a casing, a single-piece valve plug in said casing, said valve plug provided with an integral hollow head, said head provided in its bottom with an integral annular inwardly-extending flange, said valve head provided on its inner face with integral side braces extending inwardly from the inner wall of said valvefhead, said braces terminating at their bottoms in said annular flange, said hollow head provided with apertures and communicating slots in its sides, said apertures and slots being equal in number, said slotsiextending below said annular flange and to the bottom face of said hollow head, and means connected to said valve plug for manually operating same.

2. In `an orifice dial valve, the combinationof a casing, a single-piece valve plug in said casing, provided with a hollow head, said head provided at its bottom with an inwardly-extending flange and in its side with a. series of combined apertures and slots, said slots being spanned by said inwardly-extending flange, said head provided therein with straight braces on its inner wall and said braces extending toward the middle of said head, and means connected to said valve plug for manually operating same.

3. In an orice dial valve, the combination of a casing, a valve plug in said casing, said valve plug provided with a hollow head having an inwardly-extending flange at its outer end, said head and flange being provided on their inner faces with inwardly-extending straight braces,

` said braces increasing from the ange to their inner ends in size, said head provided in its side with apertures, and means connected to said Valve plug for manually operating same.

4. In an orifice dial valve, the combination of a casing, a valve plug in said casing, said valve plug provided with a hollow head, said hollow head including a side wall and a flange extending inwardly from the bottom edge of said side wall, vertical braces entirely within said hollow head and connected at their inner edges only to the inner face of said side wall and flange, said head provided with apertures in said side wall between said braces, and means connected to said valve plug for manually operating same.

5. In an orice dial valve, the combination of a casing, a valve plug in said casing, said valve plug provided with a hollow head, said hollow head including the side wall and^a flange extending inwardly from the bottom edge of said side wall,

f vertical straight braces extending from their inner ends or edges outwardly throughout their entire height toward the middle of said hollow head, each of said braces increasing in width from said flange to its uper end against the top of said hollow head, said head provided in its side wall with apertures between the portions thereof having said braces, and meansA connected to said valve plug for manually operating same.

WILLIAM ZAK. 

